I've done some more experiment. Both instability, imbalancedness of CPU usage and fluctuations of GPU clock speed are responsible for micro-stutters. Yo, devs, please address this issue until the game comes out.

Some users may notice that the game utilizes nearly 100% of one of their processor cores. This is expected behavior; we intentionally run in this manner so we can react as fast as possible in order to minimize input latency. Users on power-constrained devices, such as laptops and tablets, might want to use a Performance Target of “30 FPS (V-SYNC),” which will reduce processor usage and minimize power consumption.

Some users may notice that the game utilizes nearly 100% of one of their processor cores. This is expected behavior; we intentionally run in this manner so we can react as fast as possible in order to minimize input latency. Users on power-constrained devices, such as laptops and tablets, might want to use a Performance Target of “30 FPS (V-SYNC),” which will reduce processor usage and minimize power consumption.

Is there any way this would be changed for the full release or even a patch soon after launch? I'm getting pretty bad lag spikes every now and then on a i5 4690K, have 3 cores that don't look like they're doing much?

Some users may notice that the game utilizes nearly 100% of one of their processor cores. This is expected behavior; we intentionally run in this manner so we can react as fast as possible in order to minimize input latency. Users on power-constrained devices, such as laptops and tablets, might want to use a Performance Target of “30 FPS (V-SYNC),” which will reduce processor usage and minimize power consumption.

My system is above system requirement and your core behavior is overwhelming every I5 users. I understand the decision you have taken but this is not working for a lot of people. You need to spread the workload against more core. This is the same issue we had in FH3. I think you will see a lot of angry users if you keep the same design. Maybe you should increase your system recommendation specs if this is the case. I should be able to run this game at 60fps with what I have (I5-4670K /w 1080TI) without any stutter.

I'd be more than happy to work with Turn 10 if they are looking for tester.

Can anyone please try this, go to control panel - power options - select high performance. see if that makes a difference, you can also try to edit the high performance plan (change advanced power settings) like the picture below (so the core won't go over 90 or 95% load max).

The 0Mhz is normal in the picture (it means unlimited or Max Mhz your CPU can handle)."Active" System Cooling Policy means it will increase Fanspeed of your CPU first before lowering frequency.

The current CPU optimizations are not cutting it. Stuttering was an issue in FM6: Apex and was never fully fixed. FH3 was a disaster at launch, but the stuttering and CPU issues were fixed and it runs great now. This is disgraceful that this issue keeps popping up in Forza games. T10 needs to step up their game.

Some users may notice that the game utilizes nearly 100% of one of their processor cores. This is expected behavior; we intentionally run in this manner so we can react as fast as possible in order to minimize input latency. Users on power-constrained devices, such as laptops and tablets, might want to use a Performance Target of “30 FPS (V-SYNC),” which will reduce processor usage and minimize power consumption.

AreYouKidding ?

First time i ever see this excuse !This is completely astonishing ! Project Cars, Assetto Corsa and other driving games are using 4 cores perfectly without the "latency" you talk about. EVERY Game released now uses 4 cores ! Even consoles have multiple cores !

We are in 2017, how can a AAA developper seriously justify the usage of a single CPU Core ?

No really, i can't believe what i just read. We had the same problem during 6 months in FH3, yet you do it again for FM7 ?

Some users may notice that the game utilizes nearly 100% of one of their processor cores. This is expected behavior; we intentionally run in this manner so we can react as fast as possible in order to minimize input latency. Users on power-constrained devices, such as laptops and tablets, might want to use a Performance Target of “30 FPS (V-SYNC),” which will reduce processor usage and minimize power consumption.

Hi Soy,

Can you expand on this some? What is the relationship between core load and input latency? It seems weird that your start off saying that maximizing core load improves input latency, but then recommend a change to settings to reduce this load to improve overall performance. It would seem like this recommendation would have a negative affect on input latency.

Some users may notice that the game utilizes nearly 100% of one of their processor cores. This is expected behavior; we intentionally run in this manner so we can react as fast as possible in order to minimize input latency. Users on power-constrained devices, such as laptops and tablets, might want to use a Performance Target of “30 FPS (V-SYNC),” which will reduce processor usage and minimize power consumption.

What??????

You can't be serious!!!!

So you are telling that you guys are intentionally gimping the pc version of this game? Does the xbone version max one jaguar core as well to reduce input latency? I do not have a low powered device I have a desktop pc. A console is a low powered device and that version of the game runs at 60 FPS.

If this game is so reliant on single core performance then how do you recommend an fx8350 for 60 fps and an fx6300 for 30 FPS when they only have a slight difference in clockspeed. Please explain. Also maxing one core 100% of the time can damage the hardware.

Well, it's a good thing I tried the demo because this made me NOT pre-order this game based on the same lack of technical workmanship present in FH3, when it launched.

At least, the Drivatar system seems to have been scratched, but this was just a demo. So, for all I know, they will be part of FM7, and present the same, physics-defying, blatantly cheating "opponents" the last FM, and FH games used? Regardless, I will wait before I purchase this game and if that means six months from now once a multi-core patch is released, then so be it.

It is frustrating that being a PC player feels more like being a QA tester than a consumer =\. I've got a very capable computer but unlike any other AAA title I can't be sure it'll run smooth on any setting. Apex and FH3 ran fine, I'm disappointed and concerned about how the demo is running on my machine now (stuttering, big freezes, some CTD). I'll be waiting to purchase until it's stable, though as disappointed as I am it isn't smooth now I do think they'll get it there.

Found a fix for the stutter. I have an Alienware Area 51 with two GTX 1080 TIs, 32 Gb ram and a i7-6800k Cpu 3.4 GHz. All connected to three 4k LG Monitors. I keep my resolution from the windows settings at 7680 by 1440, and I have the Game set at Native Resolution to do NVidia Surround (Please Microsoft add in 7680 by 1440 in the Forza 7 menus so I don't have to do it via Windows Settings). Anyways simply change your video options in game to turn off "Full-Screen". I believe this relieved my main core on my CPU processor and now the game runs buttery smooth. I was getting intense stutters until that. It sucks to see the edges of the game window, but hopefully Microsoft will fix this in an update to relieve the CPU Core workload in "Full Screen" mode as well. The game looks amazing after that. Best one yet.

Some users may notice that the game utilizes nearly 100% of one of their processor cores. This is expected behavior; we intentionally run in this manner so we can react as fast as possible in order to minimize input latency. Users on power-constrained devices, such as laptops and tablets, might want to use a Performance Target of “30 FPS (V-SYNC),” which will reduce processor usage and minimize power consumption.

I hope that you are joking, otherwise I am cancelling my pre-order. This is the most ridiculous explanation I’ve ever came across on the internet.

Some users may notice that the game utilizes nearly 100% of one of their processor cores. This is expected behavior; we intentionally run in this manner so we can react as fast as possible in order to minimize input latency. Users on power-constrained devices, such as laptops and tablets, might want to use a Performance Target of “30 FPS (V-SYNC),” which will reduce processor usage and minimize power consumption.

I hope that you are joking, otherwise I am cancelling my pre-order. This is the most ridiculous explanation I’ve ever came across on the internet.

Indeed. What about shooter games which requires fast reaction? Do they also use 1 core to decrease input lag (secret answer: no)? The better mutli-core optimization the better fps which give less delay. 30fps= 33,3ms delay, 60fps = 16,7 ms delay

Some users may notice that the game utilizes nearly 100% of one of their processor cores. This is expected behavior; we intentionally run in this manner so we can react as fast as possible in order to minimize input latency. Users on power-constrained devices, such as laptops and tablets, might want to use a Performance Target of “30 FPS (V-SYNC),” which will reduce processor usage and minimize power consumption.

Wow .. so the Power constrained devices are the Problem ? Whats with the guy that is having issues on his up to date Hardware like the 7700k with a 1080TI and 32 GB ram ? shall he consider to Switch also to 30 FPS ?

So even his 7700 while running only on 1 core isnt fast enough to bring enough data to his 1080ti .. resulting in the Card is only running with 40-50% load resulting in stutter and FPS Drops ... all just because you telling us the game has less Input lag while using 1 core ? omg ..

Some users may notice that the game utilizes nearly 100% of one of their processor cores. This is expected behavior; we intentionally run in this manner so we can react as fast as possible in order to minimize input latency. Users on power-constrained devices, such as laptops and tablets, might want to use a Performance Target of “30 FPS (V-SYNC),” which will reduce processor usage and minimize power consumption.

This just reads like utter nonsense. By forcing everything onto one core you'll increase latency as everything is vying for the same processing time. Crazy.

Most, if not all of those bringing up issues are not using 'power constrained' devices. Would not call i7's with 1080Tis power constrained.

Who made this mad decision?

Seeing as this is MS's flagship title for play anywhere this isn't going to look good at all.

I would just like to add I have been playing this game again today, and have managed to take a screenshot of CPU usage using a 7700K cpu. My 1080ti should have no problems with this game, but the stuttering breaks immersion completely. I am really disappointed.

Seeing as this is MS's flagship title for play anywhere this isn't going to look good at all.

Don't pre-order it.

Don't buy the Super-Duper-Deluxe Donger edition.

Make MS and T10 *earn* their money.

Tell others to WAIT and see how the final version turns out.

As stated, if I have to wait six months, or more for proper multicore support... I will.

This isn't the only racing game on the market, and I am getting sick of developers putting out half-finished work, yet expecting full price and then some e.g. Season Pass, DLC, car packs, microtransactions, etc.

It's funny. Months ago on the "Day 1 plan" thread I said I would load up the game, see how bad it runs on day one, then wait months for a patch. People assured me that between Forza Apex and the patches Horizon 3 received that Forza 7 would run great at launch. Now seeing the demo, I know it will have the exact performance issues Horizon 3 had at launch and it will take them months to fix.

Please T10 fix that issue before the early access because I don't want to start the campaign with those random freezes... If you want you can add a feature to switch on/off the "mono-thread optimization" so everybody's happy !

You know what ? I can even play the demo in ultra 4K with my GTX 1060 !! So the main optimization is just AWESOME but there is this one core issue who freezes the game even on 720p low... (a little thing ruins everything)